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A B.C. Coroner's report ruled LSD was a contributing factor in the death of Daniel Cho, 17, who died after falling from a bridge viewing platform in June. ((Jonathan Hayward/Canadian Press))

An American high school student who fell to his death in June at the Capilano Suspension Bridge in North Vancouver was high on LSD, according to a B.C. Coroner's report.

The report determined LSD was a contributing factor in the death of Daniel Cho, 17.

Cho, from San Mateo, Calif., died on June 6 after climbing over a 1.2-metre-high railing at a viewing platform and falling 30 metres to his death.

Cho's death, ruled an accident, was due to multiple injuries sustained in the fall. The coroner found there was no evidence Cho intended to harm himself.

The report also found Cho had previously been caught by a school chaperone climbing over a railing into an out-of-bounds area.

The music student from Aragon High School was in Vancouver as part of an exchange trip with students from Killarney Secondary.

According to the report, Cho and two other students took LSD on a bus ride from Seattle to Vancouver. 

Chaperones had noticed the three students behaving strangely and had informed a teacher, who intended to talk to the students at their hotel after the trip to the bridge.